Question:
The correct order of the ionic radii of
$\mathrm{O}^{2-}, \mathrm{N}^{3-}, \mathrm{F}^{-}, \mathrm{Mg}^{2+}, \mathrm{Na}^{+}$and $\mathrm{Al}^{3+}$ is :
Correct Option: , 3
Solution:
Correct order of size for isoelectronic species.
$\mathrm{Al}^{3+}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{N}^{3-}$
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